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Cloudflare·Feb 17, 2026·v0.5.0·open source

Agents SDK v0.5.0

Cloudflare's Agents SDK v0.5.0 introduces built-in retry utilities, per-connection protocol message control, and a fully rewritten `@cloudflare/ai-chat` with data parts, tool approval persistence, and zero breaking changes. This release enhances the development of AI agents by providing more robust and flexible tools.

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overview

Cloudflare's Agents SDK v0.5.0 introduces built-in retry utilities, per-connection protocol message control, and a fully rewritten `@cloudflare/ai-chat` with data parts, tool approval persistence, and zero breaking changes. This release enhances the development of AI agents by providing more robust and flexible tools.

key features
  • 01Built-in retry utilities with exponential backoff and jitter
  • 02Per-connection protocol message control for WebSocket clients
  • 03Rewritten `@cloudflare/ai-chat` with data parts and tool approval persistence
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